chapter two vocabulary
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| atom | smallest unit of an element, 3 subatomic particles
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| proton | positive (+) charge, subatomic particle
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| electron | negative (-) charge, subatomic particle
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| neutron | no charge, subatomic particle
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| nucleus | center of an atom
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| inside a atom | protons and electron(+)charge
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| outside an atom | elements float around
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| element | substance that cannot be broken down, most naturally occur (92 out of 112), elements are building blocks of minerals
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| atomic number | tells number of protons and electrons
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| atomic mass | tells how heavy the atom is
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| to find a neutron | atomic mass-atomic number
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| electron dot diagram | electrons located at energy levels, 1st energy level-2 elec.2nd energy level-8 elec.3rd energy level-18 elec. (only for atomic numbers 11+)
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| group | vertical columns
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| periods | horozontal rows
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| 3 states of matter | 3 states of matter
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| solid | definate shape and volume
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| liquid | no definate shape, definate volume
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| gas | no definate shape or volume
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| chemical formula | 1. element2. # of molecules3. # of atoms
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
maryquinnl2013
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